Self-lubricating wheel.



PATENTED JAN. so, 1906.

T. G. AULTMAN. SELF LUBRIGATING- WHEEL.

APPLICATION FILED JUNE 22, 1906.

2 12, 7 I jJ THOMAS Gr. AULTMAN, OF FA FICE.

IRMONT, WEST VIRGINIA.

sewtuealoarme WHEEL.

Specification of Letters Patent.

Patented Jan, 30, 1906.

Application filed June 22, 1905. SerialNo/266ABr T0 LIL-U it may concern:

Be it known that I, THOMAS G. AmmMAN, a,citizen of the United States, reslding at .Fairmont, inthe count of Marion and State of West Vir'ginia, have lnvented new and uselubricant as the ordinary cap-wheel and also mchpin without interfering in any manner withthe cap.

The invention further aims to provide a self-lubricating wheel which shall be simple in its construction, strong, durable, efiicient in its use, formed of an integral body, and comparatively inexpensive to manufacture.

To this end the invention consists of the novel construction, combination, and arrangement of parts hereinafter more specifically described, and illustrated'in the accompanying drawings, which form a part of this specification, and wherein is shown the preferred embodiment of the invention.

Inthe drawings, wherein like reference characters denote corresponding parts throughout the several views, Figure 1 is a front elevation of a self-lubricating wheel constructed in accordance with this invention, the spokes being broken away. Fig. .2 is a longitudinal sectional View on line 2 2, Fig. 1, the spokes being partly broken away and also showing the rim; and Fig. 3 is a like view on line 3 3, Fig. 1.

Referring to the drawings by reference characters, 1 denotes the hub of the wheel, having two or more lubricant discharge openings 2, through which the lubricant passes to the journal 3 for lubricating the journal and innerface of the hub. Surround ing the hubl is a sleeve 4, having the spokes 5 cast integral therewith, and with the spokes 5 is cast the rim 6. The sleeve 4 is of much greater diameter than the hub 1, so as to form a lubricant chamber or reservoir 7. The inner end of said. chamber 7 is closed through the medium of a wall 8, which is cast inte ral at one end with the sleeve land at its other end with the hub 1. At the outer ermit of the removal and replacing of the end of the chamber 7 is arranged a pair of diametrically opposite flat closure members 10 and 11 for partly closing said outer end of the chamber 7. The members 10 and 11 are cast integral at one end with the sleeve 4 and at their other ends with the hub 1. That end of the hub 1 and sleeve 4 with which the members 10 and 11 are cast integral has also cast integral therewith, as well as with the members 10 and 11, a cap which is rovided with a lubricant-inlet 12, through w 'ch a lubricant can be in'ected into a'lubricant-supply passage 13, which terminates in the outer end of the chamber 7. The cap consists of a pair of outwardlyprojecting arch shaped members 14 and 15 and an inner and an outer wall 16 and 17, said walls being substantially convexed in cross-section. The arch-shaped member 14 terminates at one end in one side of the-member 10 and at its other end in the other side of the member 10, and the width of said arch-shaped member.14 is equal .to the length of the member 10. I The arch-shaped member 15. terminates at one end in one side of the member 11 and at'its other end in the other side of the archrshaped member 11, and the width-of said arch-shaped member 15 is equal to the length of the member 11. The arch-shaped members 14 and 15, in connection with the members 10 and 11,form a perand removal of the linchpin 19 for retaining the wheel upon the journal. In this connection the projecting ends of the pin 19, when the same is inserted in the journal 3, bear against the members 10 and 11, thereby re-.'

taining the wheel upon the journal. The inner wall 16 of the cap terminates in the inner sides of the arch-shaped members 14 and 15 and also in the 'hub 1, and said inner wall16 forms a chamber for the projecting end of the journal 3. This is evident, owing to the shape of said inner wall 16. The outer wall 'manently open passage 18 for the insertion Owing to passage 13 is formed. By constructing the l cap in the manner as set forth and in connection with the members 10 and 11 the outer side of the chamber 7 is closed, and also permits oi-'replenishing said chamber 7 with a lubricant when occasion so requires. The

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, over the en constructin of the inner and outer walls 16 and 17 in t e manner as set forth, as well as the arch-shaped members 14 and 15, permits the removal and replacing of the linchpin to be had without interfering with the wheel in any manner.

' access to the linchpin. T ese openings are closed through the medium of p ugs; but in the construction of self-lubricating wheels heretofore referredto the openings which enable a person to have access to the linchpin are permanently open and not closed by a plug. Therefore a self-lubricating wheel constructed in accordance with this inventionpossesses all the advantages of the ordinary cap-wheel and is provided with alubricantsupply passage which communicates at each end wit the lubricant chamber or reservoir 7, said passage 13 formed in the cap of the whee and the cap of the wheel constructed in such a manner as to form an opening to enable access to be had to the hnch in, said opening being permanently open, an thereby dispensing with the bolts, packing, or plugs,

as is now the case, and then, again, the wheel having all of its parts cast integral with one another there is nothing that can get out of order.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A self-lubricating closed at one end and an integral cap for clos ing the other end of said chamber, said cap having a permanently-open passage to permit of the insertion and removal of means for securing the wheel to a support without interfering with the cap. 2. Inaself-lubricatingwheel,awheel-body comprising a hub having a plurality 0f-ou tletopenings, a sleeve surroundin and integral with the hub and forming a In ricant-chamber and'a cap projectin'gaway and integral with the hub and sleeve and having a lubricant-feed passage communicating withsaid chamber.

3. .l n a self-lubricating wheel, a wheel-body comprising a hub having a plurality of outletopenings, a sleeve surrounding and integral with the hub and forming a lubricant-chamber and a cap projecting away and integral with the hub and sleeve and having portions thereof forming a passage for the insertion wheel comprising 'Wheel-body having a lubricating-chamber 45 with a lubricant-chamber, the combination with the bottom, top and one end wall of said chamber, of closure means for the other'end of said chamber and for forming a assage to 1 permit of the insertion and reinova of means iors'ecuring the wheel upon a su port, said closure means consisting of a cap ormed of a pair of members integralwith and projecting away from one end of said top and bottom walls of said chamber, an inner wall integral with said top and bottom walls of the chamber and with the said members and projecting therefrom, and an outerwall inclosing said-inner wall and integral with said members and top and bottom walls of'the chamber and projecting away therefrom.

5. In a self-lubricating wheel provided with a lubricant-chamber, the combination with the bottom, top and one end wall of said chamber, of closure means for the other end of said chamber and for forming a assage to permit of the insertion and remova of means or securing the wheel upon a su port, said closure means consisting of a cap ormed of a pairof members integral with and projecting away from one end of said top and bottom 'walls of said-chamber, an inner wall integral with said top and bottom walls of the charnber and with the said members and projecting therefrom, and an outer Wall inclosing said inner wall and integral with said members and'top' and bottom walls of the cham' ber and projecting away therefrom, said in ner and outer walls of said cap forming alu- V closable inlet. v

6. A self-lubricating wheel consisting ofan integral structure provided with a lubricantchamber and an outwardly-extending closure-cap therefor, said closure-cap having a lubricant passage communicating with the chamber and further provided with a permabricantpassage communicating with the chamber andsaid outer wall provided with a nently-open'passage to permit of the insertion and removal of a linchpin without inter-- fering with the cap.

7. A self-lubricating wheel, consisting of an integral structure provided with a lubri cant-chamber and a closure-Cap therefor, said cap having a lubricant passage communicating with the chamber'and further provided with a passage independent of said lubricantpassage and said lubricant-chamber to perpin without interfering with the cap.

8. A self-lubricating wheel, consisting of an integral structure provided with a lubricant-chamber and a closure-cap therefor, said front of and communicating with said ub'ricant-chamber and said cap further provided mit of the insertion and removal of a linchclosure-cap having a lubricant-passe e in.

with a passage interposed between said lubricant-passage and said lubricant-chamber, said interposed passage'ada ted to permit of the insertion and removal 0? alinchpin with 5 out interfering with the cap. I S). A self-lubricating wheel consisting of an an integral wheel-body provided with a lubrie to per a linoh- In testimony whereof I have hereunto set my hand in presence of two subscribing Witintegral structure provided with a closed llL- nesses.

bricent-chamber and a pernianentlvopen y 1 H pa'ssaqe to Permit of the insertion and rerlHOMAS AULTi 10 moval of a inohpin, said passage 1ndepend- W1tnesses:

W. H. JOHNSON, JAMES L. HALL.

ent of said chamber. i

10. A self-lubricating wheel consisting of 

